Pulverizer.



M. J. WILLIAMS.

PULVERIZER.

- APPLICATION FILED PEB.16. 1909.

Patented Nov. 9, 1909.

,IIIIIIIIII l/I,

' Inventor: Milton J.W1Hiams Abfi'v.

Wihnesse-cs .4' inside of the casing PATENT OFFICE.

mI f'roN J. WILLIAMS, or CHICAGO, ILLINOIS.

' PULVEBIZER.

Specification of Letters Patent.

Patented Nov. 9,1909.

\ Application filed February 16, 1909. Serial 'No. 478,213.

To all whom it my concern:

Be itknown' that I, MILTON J. WILLIAMS,

a citizen ofthe United States, residing'at Chicago, Illinois, haveinvented a certain 5 new and useful Improvement in Pulverizers, of whichthe following is a full, clear, and exact description, such as willenable others skilledin the art to which it appertains to make. and usethe same, reference being had to the accompanying drawings, forming partof this specification, in which-- Figure 1 is a vertical sectional Viewthrough a pulverizer constructed according to my improvement. Fig. 2. isa horizontal, fragmentary sectional view through the same.

' This invention relates to a new and useful improvement in pulverizersof that type commercially known as the Williams mills, characterized bythe pivoted revolving hammers which act upon the material as it entersthe machine at the hopper, or breaker plate, as it is sometimes called,the material being further disintegrated or crushed by the hammersacting thereon as the material 'is carried over the cage or grindingsurface. The crushed materialfalls through the openings in the cage orgri din surface into a suitable receptacle loc ted beneath the machine.The hammers or heaters which revolve about the shaft,

while made of a material whose resistance to wear is its essentialquality, will, in time,- wear away at their strikin ends, and thefarther. these grinding en s are removed from the breaker late andgrinding surface, the less becomes t e capacity of the machine. It isthe purpose of my present invention to provide means whereby theserevolving hammers or heaters maybe adjusted outwardly to take'up thiswear (or inwardly, 'ifoccasion requires,

introduced to replace a worn one), said means being opera-tablepreferably from the by relative rotary movement between two parts andeffecting the simultaneous and uniform adjustment of all of the hammersor heaters.

n the draw ng 1 ndic t t e easin 2 the breaker plate, 3 the grindingsurface "orcage, and 4 the cover of the machine,'which may or ma .notbehun as desired. I 5 is a. s aft mounted in hearings in the side framesof the machine, one end of said shaft carryin a pulleyfand the other enda balance whee ne1ther of these being shown.

as. when a new cage is' 6 are disks fixed to shaft 5, said disks beingprovided with suitable openings in which are mounted through-bolts 7. Onthese through-bolts are mounted levers 8 whose inner ends are preferablyhooked and in whose outer ends are supported'hammers or heaters 9. Disks6 are slotted, asat 10, for the passage ofadjusting rods 11 mounted inheads or disks l2 loosely arranged on shaft 5. The movable disks 12 arelocked in their rotary adjusted positions by means of bolts 13 passingthrough suitable openings 14 therein and into the holes of disks. 6.There may be as many of these openings and bolts as desired for eflectingthe various adjustments.

In operation, when the hammers 9 are new, levers 8 rest with theirhooked points upon therods .11. When theends of the hammers become worn,the'bolts 13 are with-. drawn and the movable disks 1'2circumferentially adjusted so as to locate bars 11 in such positionsthat the inner ends of the levers 8 may move inwardly, and the hammers 9outwardly to take up the wear of the V latter. These adjustments aremade from time to time, after each adjustment the bolts I 13 beinginserted andscrewed home so as to fix the relation of the movable disks.12 with respect to the fixed disks 6.

In order to prevent the hammers 9 and the levers 8 from falling,so as todull the ed e of the striking points of the hammers, shou d sharphammers be employed, I provide bolts 15, shown in Fig.-1.-

By referring to Fig. 2..it will be seen that there is a common bolt"(from which all of the levers are mounted'and also a-comm'on pivot boltfor'all of the hammers 9.

I. am aware that minor changes in the construction, arrangement andcombination of *the' several parts of my device can be made andsubstituted for those herein shown and described without in the leastdeparting from the nature and principle of my invention. i

using the expression disks in the foregoing specification and in thefollowing claims, I wish to be understood as not confining myself tocircular disks, as the parts which perform the functions of thesupporting disks described and claimed could be in the shape ofspider-arms, .or other forms, metal being cut away at various places,where it was not needed, to lighten the mach ne Having thus described myinvention, what I claim is:

supports.

2. In a pulverizer, the combination with a casing, a shaft, disks hiredto said shaft, levers pivotally supported between said disks, revolvinghammers pivotally carried by the outer ends of said levers and rotatablemeans cotiperating with the inner ends of said levers for adjusting thehammers inwardly and outwardly.

3. In a pulverizer, the combination with a casing, a shaft mounted inthe casing, disks fixed to said shaft, levers pivotally mounted u onsaid disks, revolving hammers carried by said levers, disks rotatablymounted on said shaft, means for locking the last mentioned disks intheir rotatably adjusted positions, and means carried by and rotarydisks and cod erating with said levers for adjusting sai hammers, tomove the hammers outwardly to take up the wear. v 4. In a'pulverizer, acasing, a shaft jourseem;

naled for rotation therein, disks .fixed on said shaft, in which disksare formed a series of concentric slots, rods passingthroughcorresponding slots, a series of sets of lovers pivotally heldbetween the disks, the inner ends of which levers bear upon the rods,revolving hammers pivotally carried by the outer ends of said levers,and rodadjusting means located on the shaft adjacent to the disks andengaging the ends of all of the rods.

5. In a pulverizer, a casing, a shaft journaled for rotation therein,disks fixed on said shaft, in which disks are formed a series ofconcentric slots, rods passing through corresponding slots, a series ofsets-of levers pivotally held between the disks, theinner ends of whichlevers bear upon the rods, revolving hammers ivotally carried by theouter ends of said means located on the shaft adjacent to the disks andengaging the ends of all the rods, and means whereby the rod-adjustingmeans is locked to the disks after adjustment.

- In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses, this 8th day of February, 1909.

-MILTON J. WILLIAMS.

Witnesses:

WILLIs Mnnvmn, I RmNHoLn E. Wm'rnn.

levers, rod-adjusting

